An emergency beacon is a critical device designed to transmit distress signals in life-threatening situations, aiding search and rescue (SAR) operations. These beacons are essential for individuals in remote or hazardous environments, such as hikers, pilots, sailors, and adventurers, where immediate assistance may be required. There are several types of emergency beacons, including EPIRBs (Emergency Position Indicating Radio Beacons) for maritime use, ELTs (Emergency Locator Transmitters) for aircraft, and PLBs (Personal Locator Beacons) for personal outdoor activities. Each type operates on specific frequencies, primarily utilizing the Cospas-Sarsat satellite system, a global network that detects and locates distress signals. When activated, an emergency beacon sends a powerful radio signal containing a unique identification code, GPS coordinates (if equipped), and other critical data to rescue authorities. Modern beacons often integrate GPS technology, enabling precise location tracking within meters, significantly reducing response times. The signal is relayed via satellites to ground stations, which then alert local SAR teams. Key features of emergency beacons include: - Waterproof and rugged design to withstand extreme conditions. - Long battery life, often lasting several years in standby mode. - Manual and automatic activation (e.g., ELTs may trigger on impact). - Strobe lights or homing signals to assist rescuers in final approach. Proper registration of beacons with national authorities ensures that responders receive owner details, enhancing rescue efficiency. Users must test and maintain their devices regularly to ensure functionality. Emergency beacons have saved countless lives by providing a reliable last-resort communication method when other means fail. Their importance in aviation, maritime, and outdoor adventures cannot be overstated, making them a vital tool for safety in high-risk environments.